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Re: ESP with MODBUS protocol

PostPosted: Sat Aug 20, 2016 12:13 pm
by reaper7
@ovdleun - I do not test esp01 but wemos mini with gpio0 and gpio2 :)

so, we waiting for Your tests :)

Re: ESP with MODBUS protocol

PostPosted: Mon Aug 22, 2016 7:42 am
by ovdleun
@Reaper07,

hehe sorry my bad. ;) Ok, so I hooked up everything last weekend and it works like a charm with the right converter! :D Then I discovered that my code was doing the queries too fast, so I had to put in a 500ms delay and with that, it was succesfully gathering the required information. So thank you very much for the SDM220 lib. ;)

I'll update this reply with a link to my blog post as soon as I've finished it. But for this matter, I just had the wrong RS485 converter. ;o)

KR.
Onno.

Re: ESP with MODBUS protocol

PostPosted: Mon Aug 22, 2016 8:00 am
by reaper7
nice to hear! :D

Re: ESP with MODBUS protocol

PostPosted: Thu Nov 03, 2016 9:53 pm
by mohsh86
ovdleun wrote:@Reaper07,

hehe sorry my bad. ;) Ok, so I hooked up everything last weekend and it works like a charm with the right converter! :D Then I discovered that my code was doing the queries too fast, so I had to put in a 500ms delay and with that, it was succesfully gathering the required information. So thank you very much for the SDM220 lib. ;)

I'll update this reply with a link to my blog post as soon as I've finished it. But for this matter, I just had the wrong RS485 converter. ;o)

KR.
Onno.



Hello,

would you mind telling me what was the wrong RS485 converter and what is the correct one ? i am using this one and am not sure where my problem is, i am using a 5v<->3.3v logic converter, assuming the MAX485 is 5v logic..